中国稻米

• 专论与研究 • 上一篇    下一篇

早稻氮高效利用主栽品种的筛选

  1. 1中国水稻研究所/水稻生物学国家重点实验室,杭州 310006;2长江大学农学院,湖北 荆州 434020;3金华市婺城区农林局,浙江 金华 321017
  • 出版日期:2019-07-20 发布日期:2019-07-20
  • 基金资助:

    国家重点研发专项(2016YFD0200801;2017YFD0300409);现代农业产业技术体系建设专项(CARS-01-22)

Screening of Early Rice with High Nitrogen Use Efficiency

  • Online:2019-07-20 Published:2019-07-20

摘要:

采用大田试验,选用12个生产中常用的早稻品种,进行施氮和不施氮2种处理,分析不同基因型水稻的产量、干物质积累和氮素吸收等情况,并以产量和氮素生理利用率(PE)为主要筛选指标,筛选出氮高效品种中嘉早17、中早35、金优463,并分析了氮高效早稻品种的籽粒性状。

关键词: 早稻, 氮高效, 象限分析, 筛选指标

Abstract:

Field experiments were carried out to study the effects of different nitrogen application rate on rice yield, dry matter accumulation and nitrogen uptake of different genotypes rice varieties, 12 early rice varieties were used as materials. Three high nitrogen use efficiency varieties, Zhongjiazao17, Zhongzao 35 and Jinyou463, were selected with yield and physiological nitrogen use efficiency (PE)as the main screening indexes.

Key words: early rice, nitrogen use efficiency, quadrant analysis, screening index

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